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Why are the digits of a large number separated into groups of 3 digits separated by commas?
Wiki User
∙ 8y ago
This is to aid the reading of the number and putting it into words. When looking at the place-value table the columns starting from the one before the decimal point and moving left are labelled: Ones (or Units), tens, hundreds, thousands, ten-thousands, hundred-thousands, millions, ten-millions, hundred-millions, and so on.
If you look at these labels you will see that they are in sets of three:
Ones, tens, hundreds;
Thousands, ten-thousands, hundred-thousands
Millions, ten-millions, hundred-millions
etc.
An in each set of three there is: Units, Tens Hundreds, The Units is used as a "multiplier" for the group of three: (Units, tens, hundreds) times One; (Units, tens, hundreds) times thousand; (Units, ten, hundreds) times million, and so on.
Writing large numbers in groups of three helps the reading as each group is read as however many hundreds, how ever many tens and however many units and then followed by the "multiplier" of Ones, Thousands, Millions, etc (though for Ones the multiplier isn't said as ones, but omitted). Commas are use to "keep" the number together; spaces can be used but it might be considered as more than one number. When the coma is used as a decimal comma (like on mainland Europe) a full stop is used to separate the groups of three.
Thus, to read 123,456,789 becomes easy; it is 123 millions, 456 thousands, 789 which in words is one hundred and twenty three million, four hundred and fifty six, seven hundred and eighty nine. The commas of the digit form being put in the word form help to insert little pauses between each group and make it easier to read (by allowing time for a breath and the eyes to scan forward for the next phrase of the number).
Wiki User
∙ 8y ago
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What am I am a group of three digits separated by commas in a multiple digit number?
They are called "thousands".
What is the definition of period in math terms?
In place value, a period is each group of three digits separated by commas in a multidigit number.
How are the digits in a number grouped?
In much of the world, in groups of three from the decimal point outwards (in both directions). On the integer side the groups may be separated by commas (or full stops). In South Asia, though, integers are grouped in three and then in twos - again moving to the left from the decimal point.
Where do the commas for the the number 127992 go?
Starting from the right, you place a comma after every 3 digits. Thus, it would read 127,992.
Why you use commas when writing large numbers?
In representing large numbers, English texts use commas (or spaces) to separate each group of three digits. This is almost always done for numbers of six or more digits, and optionally for five (or even four) digits. This makes it easier to read the number without having to count how many place holders there are in the number as a whole.
What is a group of 3 digits separated by commas in a multiple number?
Commas are used to separate large numbers into groups of three digits. Each group is called a period.
In a number a group of 3 digits separated by a comma is called a what?
Commas are used to separate large numbers into groups of three digits. Each group is called a period.
What am I am a group of three digits separated by commas in a multiple digit number?
They are called "thousands".
What is the definition of period in math terms?
In place value, a period is each group of three digits separated by commas in a multidigit number.
What is the standard form of a whole number?
The standard form of a whole number is when a whole number is written in digits with commas separating the digits into groups of three starting from right to left
How are the digits in a number grouped?
In much of the world, in groups of three from the decimal point outwards (in both directions). On the integer side the groups may be separated by commas (or full stops). In South Asia, though, integers are grouped in three and then in twos - again moving to the left from the decimal point.
What are three periods in the numeral 645165758?
The "periods" in a big number are the groups of 3 digits between the commas. The correct way to write this big number is: 645,165,758 ... in 3 periods.
Where do the commas for the the number 127992 go?
Starting from the right, you place a comma after every 3 digits. Thus, it would read 127,992.
Why you use commas when writing large numbers?
In representing large numbers, English texts use commas (or spaces) to separate each group of three digits. This is almost always done for numbers of six or more digits, and optionally for five (or even four) digits. This makes it easier to read the number without having to count how many place holders there are in the number as a whole.
How do you write this number nine million eight hundred thirty-three using digits?
9,000,833 using commas for thousand separators.
A group of three digits in a number separated by a comma is what?
Commas are used to separate large numbers into groups of three digits. Each group is called a period.This answer was found in ACSI ELEMENTARY MATHEMATICS GRADE FIVE, 2001. P. 2.
What is a number written with commas separating groups of three digits?
In much of the Western world, large numbers are grouped into thousands and powers of thousands - such as millions, billions, trillions etc. TO make large numbers easier to read, they are written in triplets comprising these "super-bases", with the triplets separated by commas. In some European countries, however, the role of the comma and the decimal point are swapped. The system of writing in triplets would not work with the Indic system where thousands are grouped in hundreds (for a lakh), and a hundred lakhs for a crore.
